Fluid-measuring pump.



A. L. PRIMBAU.

FLUID MEASURING PUMP.

APPLIUATION FILED APR.4, 1913.

Patented Nov. 10, 1914.

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THE NORRIS PETERS 60.. PHOTO-LITHQ. WASHING I'DN, D. c.

- To all whom it may concern UNITED aims PATENT OFFICE.

ARTHUR L. PRIMEAU, OF FITCHBURG, MASSACHUSETTS. V

I FLUID-MEASURING PUMP.

Be it known that I, ART UR L; PRIMEAU,

a citizen of the United States, residing at F itchburg, in the county ofWorcester and State of l\/Iassachusetts,-have invented certain new anduseful Improvements in Fluidits primary object the provision of a doubleacting pump of this nature, which shall be of extremely simpleconstruction, cheap to manufacture, and reliable in operation.

A further object of the invention resides in the provision of a doubleacting fluid measuring pump having avertically extending working orpiston cylinder, intake and discharge headers or hollow members incommunication therewith, and novelly constructed valves for closing thepassageways leading into and from the interior of the working cylinder.

In the preferred-form of the invention,

the working cylinder and the hollow intake and discharge members areintegrally connected. Part of the valve-controlled passageways extendhorizontally and conduct the fluid being pumped from the interior of thehollow intake header or member into the In other words, the fluid flowspast the intake valves before passing through the hori-' zontallyextending passageways leading to thepump cylinder and it passes throughthe horizontally extending passageways leading from the pump cylinderprior to flowing past the outlet valves.

With these and other objects in view, as i will become more apparent asthe descrip-. tion proceeds, the invention consists in certain novelfeatures .of construction, combination, and arrangement of parts, aswill be hereinafter described and claimed.

For a complete understanding of my'invention, reference is to be hadto'the following description andaccompan-ying drawings,-in which, i

Specification of Letters Patent. I Patented NOV 10, 1914.. Applicationfiled Apri14, 1913 Serial No. 758,910.

'F igure] '1 is atop plan view of my improved pump, and, Fig. 2 isagvertical sectional view therethrough, showing a por tion of the casingwhich contains the operating mechanism, which latter is not shown.

In the preferred embodiment of my invention, as illustrated'in thedrawings, 5 designates a vertically extending piston or workingcylinder, 6 the intake header or hollow member, cylindrical in shape,and 7 the discharge header or hollow member,

which is also cylindricalin shape. The

workingcylinder and thehollow intakeand discharge members arepreferablycast incasting, and the intake and discharge headersor'members, are shown as being 'posi-' tionedrupon the exterior of theworking cyl-' I 75 inder and on opposite sides thereof.

The last mentioned cylinder is closed at its upper "end bya removablewall 8, which is secured in position by means of suit? able fasteners 9..Hollow sleeveglike pro- 1601310118 10 are integrally formed upon theexterior of the wall 8 to receive the sup,

porting rods 11, which are rigidly secured thereto. These rods extendupwardly through a casing, generally designated 12,

and "are secured therein by means of nuts'18. The .wall 8 is centrallyapertured to permit the passage therethrough of a piston rod 1 1 to thelower end of which a piston 15' is secured-by means of nuts '16. Astufiing box 17 of the usual construction, surrounds the piston rod 14upon the exterior of the cylinder. The means which I have provided forsupporting the pump make it possible to so adjust the same as to bringthe piston-rod lt in accurate aline- .ment with the operating means,'notshown.

The bottom wall 18 is formed integrally with'the cylinder and isprovided with an ofl -set portionl9 which forms an inwardly I openingrecess 20 to receive the nuts 316 when the piston is at ward movement. g

The intake" header or hollow member 6 is ofza much smaller diameter thanthe working cylinder 5, extends the full length thereof, andcommunicates therewith by means of the upper and lowerhorizontally-extending The flow" of fluid through the horizonthe limitof its down Y 7o vtegral-ly, thusprovid ng' a body or maintally-extending passageways 21iand .22 is controlled by the sleevepuppet valves 25 and 26, respectively. These valves are respectivelycalled upper and lower inlet valves. Each of these valves is formed witha sleeve 27, equal to the internal diameter of the cylinder 6 into whichit extends. These sleeve members are formed with openings or ports 28through which the Both the plugs and valves are provided with tips orprojections 33 for the purpose of securing the springs in position andlimiting the outward movementof the valves.

The discharge header or hollow member 7 is of a somewhat larger diameterthanthe intake header 6, extends the full length of the working cylinder5, and is provided intermediate its ends with a discharge neck 34, whichis connected to a pipe 35that leads to a suitable discharge point. Thefluid from the working cylinder 5 enters the dis charge header throughthe upper and lower horizontally extending outlet passageways 36 and 37,which lead from the upper and lower portions, respectively, of saidworking cylinder. Cylindrical tubular valve cages 38 and 39 are threadedinto the'dis-, charge header or cylindrical member l7 and are disposedbetween the passageways 36 and 37. cages are of a restricted diameteradjacent their outer ends, viz., at the lower, end of the cage for thelower valve and the upper end of the cage for the upper valve. This cageconstruction provides seats for the valves 40 and 41, each of which isprovided with an outwardly extending sleeve 42 having openings or ports43 formed. therein. For the purpose of holding the valves upon theirseats, I provide apertured disks 44 which are secured in the inner endsof the valve cages and which are provided with out wardly projectingstems 45, which termirate in spaced relationship to the projectionsformed upon the opposed faces of the valves. Expansive spiral springs46. sur round the stems and by bearing against the valves serve to holdthem normally upon their seats. The ends of the cylinder 7 are closed byplugs 47 and 48, similar in construction to the ones already described.

In operation, as the piston descends, the fluid is sucked into thepiston or working cylinder 5 through the upper-intake passageway 2i andis forced from said sageway 37.

The passages through the valve cylinder through the lower outlet pas-During this movement of the'piston, the lower-inlet valve 26 thatcontrols the fiowfrom the inlet header into thelower-horizontally-extending intake passageway and the upperoutlet-valve 40 that controls the flow from the upperhorizontally-extending outlet passageway into the discharge headerremain seated. On the upstroke of the piston, fluid is drawn from theintake header, past the lower intake valve intothe lowerhorizontally-extending intake passageway, thence into the cylinder 5,

,and at the same time liquid is being forced from? said cylinder throughthe upper horizontally-extending discharge passageway 36, past the upperoutlet valve, into the discharge heade Y From the foregoing descriptiontaken in connection with the accompanying drawings, it will be'seen thatI have provided a fluid measuring pump of extremely simple construction,in which the inlet valves are located entirely within the inlet headersand the outlet valves are located in the discharge headers and saidvalves are therefore protected from injury. If desired, the plugs whichclose the ends of the cylinders 6 and 7 may be soldered or otherwiserigidly secured in position so that it will be impossible for anyone totamper with the valves. It is to be noted that a very limited movementof the valves is sufficient to bring the ports formed in the sleevesthereof into such position as to permit the fluid to flow. intoor fromthe main cylinder 5 and this is an important feature of my invention.The projections formed on the exterior surfaces of the valves areprovided with slots to receive a tool whereby the valve may be groundupon their seats in order to insure a perfect fit.

While in the body of the specification and inthe claims thereof a pumpis described as having a vertically-extending pump cylinder andhorizontally-extending passage ways, still it is to be understood thatany pump, which can be positioned so that it can satisfy the combinationof elements definedin the claim, will be within the spirit and scope ofthe invention. i

It is to. be understood that while I have shown and described thepreferred embodiment of my invention, I do not wish to be limited tothis exact construction, combination, and arrangement of'parts, but maymake such changes as will fall within the spirit and scope oftheinvention.

Having thus described my invention, what I claim is 2-- 1. A pump havinga vertically-extending working cylinder, :1 piston therein, a hollowintake member, a hollow discharge member, upper and lower intake valvesin said intake member and upper and lower outlet valves in saiddischarge member, said pump being provided with upper and lowerhorizontallyextending passageways leading from the interior of saidhollow intake members to said working cylinder, and upper and lowerhorizontallyextending passageways leading from the interior of saidworking cylinder to the interior of said hollow discharge member.

2. A pump having in combination with a vertically movable piston of acast metal body comprising a hollow intake member of cylindricalformation, a piston cylinder and a hollow discharge member ofcylindrical formation, upper and lower intake valves located within theintake member, and upper and lower outlet valves located within thedischarge member, said cast body being provided with fourhorizOntally-extending passageways, oneleading from the interior portionof the intake member to the lower interior portion of the pistoncylinder, another fromthe interior portion of the intake member to theupper interior portion of the pump cylinder, another from the lowerinterior portion of the pump cylinder to the interior of the dischargemember, and another from the upper interior portion of the pump cylinderto the interior of the discharge member, the valves being constructedand arranged so that as the piston is raised fluid flows into the pistoncylinder, but only from the intake member past the lower intake valve,thence through the corresponding horizontally-extending passageway,andfiuid is discharged from said cylinder into the discharge member, butonly through the upper horizontally-extending discharge pas- Copies 01this patent may be obtained for five cents each, by addressing theCommissioner of Patents Washington, D. G." i

sageway past the corresponding outlet valve, the valves also beingconstructed and arranged so that as the piston is lowered fluid flowsinto the piston cylinder, but only from the intake member past the upperintake valve, thence through the corresponding horizontally-extendingpassageway, and fluid is discharged from said cylinder into thedischarge member, but only through the lower horizontally-extendingdischarge passageway past the correspondingoutlet valve.

3. A pump comprising ascasing which is provided with a passageway, atubular cage located within said 'passageand secured in place in saidcasing in a manner to prevent leakage between said casing and said cage,past the latter, a valve slidably mounted in said cage forcontrollingthe flow through' the fluid in said passageway when the pumpis being operated. a

In testimony whereof I aflix my slgnature in presence of tWO'WltIlGSSGS.

ARTHUR L; PRIMEAU, Witnesses I SIDNEY E BELL, RUDOLPH SCHNEIDER.

